Grain door for railway cars



E. PossoN GRAIN DOOR FOR RAILWAY CARS Filed August 16, 1920 5Sheets-sheet 1 NOV 9 E- POSSGN 1,508,957

GRAIN DOOR FOR RAILWAY CARS l e u Us e lig@ fwen Edward @6600;

Nov. 3o, 192e. Y1,608,957

E. POSSON GRAIN DOOR FOR RAILWAY CARS Filed August 16. 1920 3Sheets-She@I 5 fm1/Mio@ Edward Posso@ Patented Nov. 30, 1925i il StatesParent ortica *lJlIDW ,"fllif' rGIdIhGAGO, ILLINIS, ASSIGNOYR iOFONEMHALF :TO FREDERICK C. `ltlAlEG1125?, OF CHCAGO,JIILLINOSgHARRSTE/USTAND SAVINGS BANK ANDEGBERT H. GOLD, "EXECUiTR-S OE :SAID `IELlDJlUl;RDgDECEASEI), ASSIGNORS `GLF LONE' Hann 'no PAY EJPossoN.

GRAIN DOOR FOR RAILWAY CARS.

AApplication Ied August 16, `1%?20. Serial No. 404,023.

This invention relates to improvements in grain doors 'i'or railway carsand the purpose is to provide fan improved `sectional grain door.l

The principal object .of the 'invention 1s to provide an vimproved doorwhich may he applied to any new or old freight car to adaptit ior `usein shi ping grain, although it will he understoo that this improved dooris of great advantage in the .Shipment et any kind `of freight. A Afurther 'important object oit the invention is 'to provide a sectionalgrain door having means for storing` the door sections [in an improvedmanner within the car. Still `another' object is to provide a doorcomprising a pluralityof complementary sections which are movable inguideways and permanently attached to the ear structure so `that theycannot 'he removed hy unauthorized persons. "Still another object is toprovide means for permit ting the ready removal oic the door sectionslor purposes ci replacement or repair. other improved feature is theAprovision of means tor insuring the movement of the ral door sectionsin the proper'directions Vfrom the door opening into the supportingguideways in which they are stored. `Other objects `relate `to variousfeatures of construction and arrangement to insure safety and dispatchin operation which will appear more clearly hereinafter. l

rl`he nature ot the invention will loe understood from the followingspecification taken with the accompanying.drawings in which oneeinhodiment is illustrated.

Figure l shows a longitudinal sectional ii through a railway car havingthe present inventionapplied thereto. the door sections heingillustratedin door closing position;

Fig. E2 shows a longitudinal sectional View, lar'to Fie'. l, with thecomplementary sections stored Vin their guidewa-ys on the f. Le walls ofthe ear;

l1 3 shows `:an enlarged longitudinal s ectional view, similar to Fig.2, showingone ot the door sections rin its initial position passing trom,the door Vopening toward the end of the car; y

Fig. #i shows a perspective view olf the outer .side .et one `Qt .the,lClOOI L SEQOQS, .lllllS Fig. 'i' lshows a detail perspective View ofthe lower left hand corner of the door opening, illustrating the meansfor guiding the lower-edges of the. lower door sections against the doorpost, and the means for ,permitting the escape ott grain Vtroni thelower end ot' the guid'eway;

Fig. 8 is a. 'horizontal sectional View similar to that of Fig. 6,showing a modified form of construction;

"F 9 shows an enlarged vertical section on ,the line 9-9 ot Fig. 3v;

Fig. l() shows Aa detail view of the upper left I hand corner ot thecar, as 4viewed in Fig. 2, illustrating the method of removing the doorsections from the guideways; Y

F ll shows an enlarged perspective view oli' the upper leit `hand cornerof the door opening, as viewed in Fig. '2, villustrating Vtheconstructionof the guideways and the means 'for preventing theaccidental return of l'the door sections to positions over the 4dooropening; and

Fig. rl2 shows a perspective -view of the inner side of one oit thepivoted latches, illustrated in Figs. l, 2 and ll.

The railway car illustrated in the draw ings comprises a floor 15, endwalls 16, a roof 17 andiside -walls 18. 'Each side" wall is providedwith a door opening 19 'which is bounded along its lateral sides hy thedoor posts 2O and along its `upper edge hy the upper door sill E21. The`lower door sill extends between `the door posts,` as shown particularlyin Fig. 6. The door` opening i9 is ,adapted `:to be closed hy aplurality ot complement-ary `door sections 25 which en tend across thedoor opening and overlap the :inner sides 'of thedoor posts. These doorsections are preferably formed `oit wooden fillers 26, covered hy sheetmetal 27, asillustrate-diin Fig. 9, in order "to provide a'- combinationel? Strength and light weight. The longitudinal edges "of the doorsections are prvdedwth iterfttng flangesa (itl notches 29, whereby agrain tight closure is formeel between the sections when they are in theposition illustrated in Fig. 1. The door sections are further providedWith indentations 30 which form hand holds to permit the lifting of thedoor sections by the operator. Another centrally located ind-entation 3lis provided near the lower edge of each door section Which is capable ofoccupying the lowerinost position in the door opening in order to permitthe operator to pry the sections upwardly by means of a crowbar. Eachdoor section is provided 'on its'inner side With three projecting lugs32 which extend through and are riveted to the door sections, asillustrated in Fig. 9. These lugs have. reduced necks 3f and enlargedheads 32b and these lugs are adapted to travel in guidervays 33 whichextend vertically along the inner sides of the door posts. TheseguideWays are formed by means of spaced metal strips or plates 34 Whichare seated yon and secured to the Wooden cleats 35 and 36 carried by theinner surfaces of the door post and the metal plates overlap the edgesof the Wooden cleats and the heads of the lugs 32 so that the doorsections are securely attached to the guide- Ways and are capable ofvertical movement only therein. In order to permit the out- Ward flowinto the interior of the car of any grain which may enter the guideways33, the lower extremities of the inner cleat 36 and the metal guideplate 34 which is carried thereby, are terminated a short distance abovethe floor 15 of the car, as shown at 38. A metal plate 39 is secured tothe floor adjacent each door post, as shown in Figs. 6 and 7 and thesemetal plates are provided with slightly inclined faces 39L adapted toengage `the. lowermost part of the door section so that the door sectionis forced tightly against the lower edge of the door post in order toprevent any leakage of grain at this point.

An important feature of the invention is the location of the guiding`lugs 32. Two of these lugs are located adjacent the upper and lowercorners of one end of each door section and the other lug is locatedadjacent the upper corner of the other end of the section, as shownparticularly in Figs. 3 and l. The two lugs at one end of each doorsection travel in one of the guidevvays 33 and the other lug at theother end of the section travels in the other guideway 33 duringF thevertical movement of the door section. lAny number of door sections maybe provided but in the embodiment illustrat-ed in the drawings there arefour door sections, and the lugs 32 on two of these door sections arearranged opposite to the manner of arrangement of the lugs on the othertwo sections for a purpose hereinafter desCriteri In order to protectthe movable door sections 25 from damage by the movement of boxes orother lading Within the car, a protecting member or door j amb 37 isprovided along each lateral edge of the door. Each protecting member 37is .secured to the side Wall of the car by bolts 37at and the edgethereof toward the end of the car is curved, as shown at 37 f, in orderto permit articles Within the car to slide thereover. rlhe member 37 isnotched out along its inner edge, as `shown at 37", to permit it toextend over the member 36 which forms the 'outer Wall of each verticalyguide-Way 33, as shown in Fig. 6. A meta-l plate 37c is preferablysecured to each ofthe members 37 With the edge thereof projecting beyondthe edge of the protecting member` and overlapping the end of the doorsection which is notched out or recessed, as shown at 37d, to receivethe projecting portions of the plate. The outer surface of each member37 is recessed to receive the plate 37c so that the surface of the plateforms a continuation of the curved surface 37f and the plates areadapted to lie flush With the inner surfaces of the door sections sothat the movement of the lading Within the car will not cause any injuryto the door sections. The members 37 and 37C form auxiliary guideuvaysfor direct-ing the door sections yin their vertical travel and theseguidevvays serve to increase the effectiveness of the door sections inproviding a grain tight closure. The members 37 and 37 are extendedupwardly lto a height corresponding to the upper edge of the uppermostdoor section When the door sections are in their door closing positions.as shown in Fig. l, and the door jambs 37 are preferably spaced from theends of the door sections 25 sutiiciently to prevent the binding of thedoor sections between them. This may preferably be accomplished byproportioning the parts so that the guiding ugs will engage the Walls oftheir guideuays before the ends of the door sections engage the members3ft, even When the door sections are tilted.

A modified form of this construction is illustrated in Fig. 3 Where aWooden door jamb 37d is secured to the side of the car Wall by means ofbolts 37e. This construction is similar to that illustrated in Fig. 6except that the Wooden door j amb 37 d is used alone Without a metalplate overlapping the ends of the door sections, although the surface ofthe door jamb 37d is adapted to lie flush with the inner surfaces of thedoor sections, as shown in the preferred form of construction.

The `door sections are adapted to be stored adjacent the roof of the carand along the side Walls on parallel longitudinal guideu Ways 4t() andel. Each upper guideway l0 @Mende Substantially throughout the `lengthlll() el the car and above the door opening) but the lower guide-nay isformed in two parts. which terminate atl the door posts ,rherjeth-eyconiuuinicote with the vertical guidevvays The upper guidevvays l0 eretermed by met al guide-plates l-l which are sec ed` in recesses .formedin the Wooden s pporting members 45, arranged longitudinally of' 'thecar und supported by the usual side Walll poste 46 und braces t?. Itdesired, additionul trame members ma; be attached to the side ivalls ofthe cer. The metal plates ed entend inwardly und ove] sp the heads offthe lugs 32., as shown` in Fig, 9. The two ports of lovver `quideivay llore termed by other` metal iide plot-es L159 which secured tolongitudinal trame members SO also carried by the posts lo and braces4:7. 'llo lovver guiden'ay ll has only one plate 4:9 'which en: tendsupwardly and overlaps the head of the lower lugeY 82 but the removal ofthe door sections :trom the guideways will be prevented by the twoplates Ll-l of the upper guideway and the. engagement of the plete i9with the singgjle loifer hip)` 32 serves to i,irevent the door sectionfrom swinging oiixtWa-rdly at its louer edge sway from the Wall ot theoer. Alt will be obseryed that the guideivays are located near 'the roofabove the inside sheathing 51 of the oar so that When the door sectionsere in their upper positions, as illustrated in Fig'. 2, they do notinterfere vri-tb or domage the ladino' Within the car nor are the doorsdamaged by the le which does not require side door prete ion.

'llhe yertical lejuideuays coiumunieote ivi the upper guideu'ays 40,shown srt and u communication is also provided lictu'een the 'verticalguideivays 38 and 'the lower pjuidevrajifs il by menus of openings oel,Vwhich are formed in the metal plates l und the cleats on the sides ofthe guildeways nearest to the ends ot the car. rllhe metal `guide platesoft und fl- Which bound the inner sides of the guideiveys ond lt) aroimdthe door opening are continuous as shown particularly in Fig.

Vllhen o door section is moved vertically until it reaches the upper`limit of its travel, it. may be moved in one direction lgongitudinellyot the car by passing the upper lugs 32 along; the upper` guideways llland by passing; the single lower lun; through ,one of the openings Llinto Ieniggagement with one of the lower guidewa-ys ll. VThe use oit twoguiding' lugs 32 at one end of the section, end only .one lug- 32 nt theother end will permit the movement of each door section in one directiononly longitudinally V`ol" the car. since it is necessary to poss eachoit the lugs 32 at the lower corner ol the door tion through one of Aheopenings 54, ando movement thereof in the opposite direction isprevented by the opposite vertical Wall of the guideway 33.Theldireetion vin :which `the ing. These latch. members door sectionshould be movedean be read a ascertained. after it hes rei ed lne upvlimit of its travi/'el in the vertical guidon but to facilitate `theready movement o1? door sections in the proper directions, ari nrepreferably painted` on them, as shown at 55.

It tvvo of the doorV sections have been moved longitudinally in onedirection and the other two doorI sections hev-A longitudinally in theother dir orion, 'they will occupy the positions illustrated in Fie'. 2,and to prevent the unauthorized rem olt the sections from the horizontalWays, metal cleats 58 are placed aero.' extremities of the upperAo;uideivays l0 and ll and riveted or bolted thereto. These plates 58also serve us stops to limit the end- Wise movement ol the doorsections. The plate 44 and frame member l5 which term the loiver Well oteuch upper guideivay el() are extended beyond the plate lili and tramemember which form the upper boundary or" the guideway, adjacent the ei iWall ot the oar, as shown at 319, and both or these plates are extendedbeyond the end of the lower guid-eway l-l Which terminates some distancefrom the end Wall oit the car, as shown ot 60. ll! ith thisconstruction, the plates 58 may be ren'ioved by autl'iorized iersons byremovingr the bolts or rivets and then the door sectionsI 25 may beremoved from the guideivays by following the movement illustrated inFig'. l0. The door section 25 is first extended lonw gitiiulinallyuntil. the luie' 32 et the upper con ner thereof and nearest the end ofthe cai' posses beyond the extremity oil the upper wall of the guideivayell.. At the same time the lower lug` 32 will have passed bei/.fond theextremity 60 of: the lower guideivuy. The end of the door sectionadjacent the end wall oat the cer con then be elevated to pass the upperlug 82 out of eno'apgement with the lower Wall of the upper guideufayIll und the door section can then be swung` or tilted dowiiiwardly intothe position The door section can then be moved loiugitudinally into theposition 25 end thus pass the single lug at the upper end thereofbeyond. the oir-- tremty of the upper Wall of the upper ruidoivay. Theentire door section can then be lifted oil of the upper `euideuay andthere-- by separated from the car. The door svctions are replaced byreversing the operation just described.

In order to prevent the accideiital of the door sections to thevertical. u

im o'tVi 33, it is desirable to provide latch members Awhich are pivotedat G6 on the plates o? carried by the upper treme members it jacent theupper corners ol the door openere provider with inclined shouloers `68ou their inner sides, which shoulders are adopted to r upon theupperedges of the upper plates il and been morod;

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lib

thus hold the latch members normally in the inclined positionsillustrated in Fig. 1. lVhen adoor section is moved upwardly in thevertical guideways and thence longitudinally therefrom in the horizontalguideways, the latch member toward which the door section is moved, isautomatically lifted by engagement Awith the door section and ridesthereon, as illustrated in Fig. 3. After the door sections have passed,the latch member drops into the position illustrated in Fig. 11 andautomatically holds the door sections against return movement.

During the opening movement of a door section, the singlel lug 32 at theupper corner of the trailing end of the door section has a tendency todrop into the vertical guideway 33 at the opposite edge of the dooropening and, to prevent this dropping movement, supporting` plates areprovided adjacent the opposite edges of the door opening. These platesare secured to th-e lower frame members 50 by means of bolts 7l andalthough there is preferably a slight clearance between these blocks andthe lower edges or the door sections, they will effectively prevent thedropping of the lugs 32 into the wrong vertical guideways.

il further important feature of the invention is the provision of safetystops which are pivoted on bolts 76 engaging the opposite door posts 20.These stop members 75 are provided with curved slots 77 which areengaged by pins 78 secured in the door posts. These pins hold the stopmembers normally in upwardly directed inclined positions with the endsthereof projected beyond the guideways to engage the lower edges of adoor section a short distance below the lower guideways Lil. These stopmembers will enand hold a single door section when it drops into theguideways 33 and they serve to prevent injury to a person who might belocated in thel doorway without notice of the movement of the doorsection. rlhese latch members can be readily elevated by hand at thesame time that the door sections are being manipulated in order topermit the lowering of the latter. W' hen the door sections are elevatedthey will automatically push the stop members l5 outwardly and themanual movement of them is unnecessary.

instead of employing solid door sections of the kind heretoforedescribed for adaptn ing the car for vuse in shipping grain, these soliddoor sections may be removed and replaced by other complementary doorsections S0 comprising metallic frame members 8l of channe. forminclosing sheets of relatively stiff woven wire. Plates 83 are securedin the corners of each frame and three of these. plates are providedwith projecting lugs Se corresponding to the lugs 32. The lugs 8e areadapted to engage the guideways 33. 40 and il and by the use of thesedoor sections,

the car can be employed for shipping fruit or vegetables. lWhen usingeither the solid or the perforated door sections, they can be locked ina position to close the door opening by connecting` them together inpairs by means of plates 85 and 851 and padlocks 86. Since only one doorsection can be removed into the horizontal guideways at a time, thelocking of two of them 'together' will effectively prevent the removalof any of them from the door opening.

rlhe use of three connecting lugs 82 on each door section serves tosecure the door sections in close relation to the gu'ideways so that thelower portions thereof cannot swing outwardly away from the door openingor from the side walls of the car. This construction also maires itpossible to hold the door sections in proper relation to the car wallwithout the necessity of forming any openings in the vertical guideways33, which openings might possibly permit the un `uthorized detachment ofthe door sections. rllhe plates, which are secured to the floor of thecar for engaging the lowermost door section, are adapted to hold thissection against the door posts and guideway's so that the leakage ofgrain adiacentthe bottom of the car is effectively prevented. Any numberof .door sections may be used in order to close any part or all of thedoor opening, and by shifting the door sections longitudinally of thecar in both directions from the door opening it is possible to lreep thedoor sections as close as possible to the roof of the car when they arenot in use so that they do not interfere with the freight within thecar. Since the door sections fit tightly against the side wall when theyare stored in the horizontal guideways," they are not readily put out ofcommission by the freight in the car and they are adapted for use withsubstantially any kind of freight. The improvementA can be applied tosubstantially any new or old car without taking any space from thedoorway or with-out occupying any material portion of the space withinthe car. The sections are relatively light and are practicallyindestructible. A distinctive advantage of the invention is that thedoor sections cannot be removed from the car except by authorizedpersons for purposes of re placement or repair, and this removal iseffectively accomplished in the manner here tofore described. lllhen thesections are stored in the horizontal guideways, they are prevented fromaccidentally returning to the vertical guideways by oted latches, andthe dropping of the trailing end of a door section into one of thevertical guideways during the movement of the door away from the dooropening, or of the leading end during the closing movement, is preventedby the fired lugs which are adapted to engage the undersides of the doorsect-ions adjacent Sil theater) the door posts. it further precautionagainst the accidental droppingoj the door sections into the verticalgiiideivays is talren through the provision olf the pivoted latches 75`Which catch each door section be'tore it has dropped very tar ironi thehorizontal guideivays. rlhese latches can be conveniently elevated byone operator when the door sections are being` lowered. ln elevating thedoor sections they can be moved only in one direction and this directioncan be determined by trial or by inspection oit the arrows marked onthem, The use of three connecting` lugs engaging the guideWays isetl'ective in preventing any objectionable binding oi the door sectionsin the vertice guideivays and such bindingl as does occur, taires place.between the h located at the diagonally opposite corners ot the doorsections when these sections engage the metal plates Which torni theWalls of the guide- -Ways adjacent the door opening. The binding actiontherefore puts the door section under tension diagonally and Wit-h thisarrangement it is found that the door section quickly releases itsellland that no permanent binding taires place.

Although l have explained certain einbodiments and uses ot theinvention, it will be understood that various changes may be madeWithout departing` troni the scope ot the appended claims.

l. rlhe combination in a railway car having` a door opening in its Wallot plurality ot complementary door sections, means lor guiding saidsections successively to the upper part of said door opening, means forguiding soine ot saidsections in one direction only trom the upper partot' said door opening longitudinally of the car, and means 'for guiding`the other sect-ions in the other direction only troni the upper part ofsaid door opening longitudinally ont the car.

The combination in a railway car having,` a door opening in its Wall ota plurality of complementary door sections, ot vertical guideivaysextending along the lateral edges of said door opening, horizontalguidevvays communicating` with the upper parts ot said verticalguideivays and extending' longitudinally or the car in both directions,and means carried by said door sections and engaging said guidetvays torpermitting some ot said door sections to niove in one direction only insaid horizontal ,guideivays and to permit the other door sections tomove in the other direction only in said horizontal guideivays.

3. The combination in a railivay car having; a door opening in its wall,of vertical guideways extending along the lateral edges ot said dooropening, a horizontal guideway extendingl over said door openino' andlongitudinally of the car in both directions therefrom, other horizontalguideivays lo lated belenT and parallel to said iirst named horizontalguideivay, said horizontal guideways cznnmunicating with said verticalguidevmys, a plurality orl complementary door sections` a pair ot lugscarried by one eurV1 ot each door section to engage said upper guide-Way and one ot said lower guideways, and a single lug` carried by theother end oi each door section and adinjted to engage said upperguideivay, the lugs at both ends oi each door section being adapted toengage said vertical Ouideivays.

fl. The combination in a railway car havingl a door opening in its wallot vertical guideivays extending along the lateral edp'fi-s of said dooropening, upper and loiver hori- Zontal guideways eatendinglonritudinally oic said car along its wall, f, id upper guide-- Waycommunicatingl with both o'i said vertical guideways, said lower,guidetvays coininunicating With oneot said vertical guide- Ways only, aplurality ot complementa door sections, a pairolf lugs secured to oneend of each door section to engage said vertical guideways and saidupper and lo guide'vvays, and a single lug); secured to ti e other endot each door section to engage the otherrerticalguideivay and the upperhorizontal guidevvay only.

5. The combination in a railway car having a dooropening` in its ivalloi" a plurality or complementary door sections, vertical guideyvaysextendingv alongthe lateral edges of said door opening, an upper guldenIy con'imunicating` with both ot i vertical guideways and entendimc`longitudinally oi the car therefrom, lugs secured to said door sectionsand engaging said guideWays, and means carried by the car ivall adjacentone of Vsaid vertical guideivays "for proventingil the lug at thetrailing end oi' each door section during its opening` movement tromdropping,l into the vertical guidevvay adjacent said lug.

6. The conibination in a railway car hai'- ingl a door opening in itsYWall of a plurality of complementary door sections, vertical guidewaysextendingl along the lateral ed" ot said vertical guideways, upper andlo\v er hoiaontal guideivays txteiiidinrr longitudinally of the car fromsaid vertica guiderrays and terminating adjacent the end Walls or thecar, said upper guideway conimunicating,l with both vertical guideways,said lower guideivay communicatingl with one vertical guideivay only,lugs secured to sei d doo: sections and 'engaging saidy guide rays topermit the upward movement ot said door sections in said verticalguideivays and the longitudinal movement thereof` in said upper andlovrer guideivays, the end ot each door section near the end Wall ot thecar toward Which it moves being' provided with lugs to engage both theupper and lower guide- AAV ways, the other end el each door sectionbeing provided only with a lug adapted to engage the upper guideway.

.7. The combination in a railway car having a door opening in its wallof a plurality oit complementary door sections, vertical guidewaysextending along the lateral edges ot said 'door opening, horizontalguideways communicating with the upper parts of said vertical guidewaysand extending longitudinally of the car, lugs secured to said. doorsections and slidably engaging said guideways, and means detachablysecured to the ends ot said horizont-al guideways 1for permitting theremoval of said lugs from said guideways adjacent the end of the car.

8. The combination in a railway car having a door opening in its wallor" a plurality ot complementary door sections, vertical guidewaysextending along the lateral edges of said door opening, a horizontalguideway extending longitudinally of the car along its side wall andcommunicating with both of said vertical guideways, lugs secured to saiddoor sections and adapted to travel in said guidewav, said horizontalguideway comprising `upper and lower guide members spaced apart andadapted to overlap parts `ot said lugs, the lower guide member ot saidhorizontal guideway extending beyond the upper guide member thereof, andmeans detachably secured across said horizontal guideway adjacent itsextremities for preventing the removal of said lugs from said guideway.

9. The combination in a railway car hav ing a door opening in its wallot' a plurality of complementary door sections, vertical guidewaysextending along the lateral edges et said door opening, upper and lowerhorizontal guideways extending longitudinally of the car from saidvertical guideways and terminating adjacent the end wall ot the car,said upper vguideway communicating with both vertical guideways, saidlower guideway communicating with one vertical guideway only, lugssecured to said door sections and engaging said guideways to permit theupward movement of said door sections in said vertical guideways and thelongitudinal movement thereof in said uppe and lower guideways, the endof each door section near the end wall of the car toward which it movesbeing provided with lugs to engage both the upper and lower guideways`the other end of each door section being provided lwith a lug adapted toengage the upper guideway only, said upper guideway extending beyondsaid lower guideway, and means detachably secured across said upperguideway to prevent the removal of said lugs from the end thereof.

l0. The combination in a railway car having a door opening in its wallot' a plurality of complementary door sections, vertical guidewaysextending along the lateral edges of said door opening, upper and lowerhorizontal guideways extending longitudi nally ot the car from ,saidvertical guideways and terminating adjacent the end wall 01"' the car,said upper guideway communieating with both vertical guideways, saidlower guideway communicating with one vertical guideway only, lugssecured to said door sections and engaging said guideways to permit theupward movement of said door .sections in said vertical guideways andthe longitudinal movement thereof in said upper and lower guideways, theend `ot each door section near the end wall ot the car toward which itmoves being` provided with. lugs to engage both the upper and lowerguideways, the other end ror each door sec tion being provided with alug adapt-ed to engage thel upper guideway only, said upper guidewaycomprising guide members spaced apart and adapted to overlap parts otsaid lugs, said lower guideway comprising a guide member underlying saidlugs and overlapping parts thereof, said upper guideway extending beyondsaid lower guideway.

ll. IThe combination in a railway car have ing a door opening in itswall of a plurality of complementary door sections, vertical guidewaysextending along the lateral edges of said door opening, upper and lowerhorizontal guideways extending longitu dinally of the car from saidvertical guideways and terminating adjacent the end wall of the car,said upper guideway communicating with both vertical guide ways, saidlower guideway communicating with one vertical guideway only, lugs secured to said door sections anu engaging said guideways to permit theupward move-l ment 4oi" said door sections in said vertical guidewaysand the longitudinal movement thereof in said upper and lower guideways`the end of each door section nea the end wall of the car toward which itmoves being provided with lugs to engage both the upper and lowerguideways, the other end of each door section being provided with a lugadapted to engage the upper guideway only, said upper guidewaycomprising guide members spaced apart and adapted to overlap parts ofsaid lugs, said lower guideway comprising a guide member underlying saidlugs and overlapping parts thereof, said upper guideway extending beyondsaid lower guideway, the lower guide member of said upper guidewayextending beyond the upper guide member thereof, and means detachablysecured across said upper guideway for preventing the removal ot saidlugs from the end thereof.

In testimony whereof, l have. subscribed my name.

EDl/VRD POSSON.

